Setting Into Operation; Adjusting The Level - Monacor NANO-2001 Notice D'utilisation

GB
Important!
When choosing suitable speakers, pay in any
case attention to their mechanical and electrical
capability in connection with the power used of the
power amplifier (

7 Setting into Operation

Important!
Prior to the first switching-on, select the filter with
the switch X-OVER (1) and coarsely adjust the
crossover frequency with the control X-OVER (2)
[chapter 7.1] so that the speakers will not be over-
loaded by a frequency range that might be too
wide. It is also recommended to check the entire
wiring of the power amplifier once again for cor-
rectness before reconnecting the negative termi-
nal of the car battery.
7.1 Selecting the filter and
adjusting the crossover frequency
Depending on the speaker type connected, select
the filter with the switch X-OVER (1).
For full range speakers set the switch X-OVER to
the position FULL. The power amplifier reproduces
the entire frequency range. The control X-OVER
has no function.
For mid-high range speakers set the switch
X-OVER to the position HP. The high pass is
switched on and the low frequencies are thus sup-
pressed. For the time being, coarsely adjust the
crossover frequency with the control X-OVER.*
For bass speakers or subwoofers set the switch
X-OVER to position LP. The low pass is switched
on and the medium and high frequencies are sup-
pressed. For the time being, coarsely adjust the
crossover frequency with the control X-OVER.*
* For a guidance, observe the frequency range of the speak-
ers used. The fine adjustment is made with corresponding
meters after the level adjustment.
10
chapter 9, specifications).

7.2 Adjusting the level

Hint To keep the interference by the electric sys-
tem of the car as low as possible, the output
level of the signal source should be 1.5 V as
a minimum.
1) First for basic adjustment, turn the control GAIN
(3) to the left stop to position MIN.
2) Switch on the car HiFi system completely. The
power LED (11) shortly shows red, then green.
If it does not light up or only shows red, see
chapter 8.
3) Adjust the signal source, e. g. the car radio, to
the maximum, non-distorting volume.
4) Turn up the control GAIN so far to the maximum
that no distortions occur.
5) To match the volumes of all power amplifiers of
the car HiFi system with each other, attenuate in
each case the levels of the power amplifiers
which are too high.
8 Trouble Shooting
If there is no sound after switching on the car HiFi
system, locate the fault more precisely by means of
the LED (11).
The LED does not light up
1) Check the fuse (10) of the car HiFi amplifier
(40 A) and the additional fuse at the car battery.
Replace defective fuses. Only use fuses with
the indicated values. Do not insert a higher
value in any case. The power amplifier may be
damaged and the guarantee will expire.
2) Check the 12 V power supply cable and the
ground cable for correct connection and for
interruption.
3) Check at the terminal REM (8) of the power
amplifier if +12 V is present. If not, remove the
cable at the terminal REM and temporarily
short-circuit the terminals REM and BATT (9). If
the power amplifier switches on now, the fault is
due to the missing control voltage. Check the
12 V control output of the car radio and the cor-
responding connection cable to the power
amplifier.